Dixon Valve Coupling RGB8 Ground Joint Hose Coupling

Product Description

The DIXON VALVE COUPLING RGB8 is a ground joint hose coupling designed for secure, leak-resistant connections in fluid transfer applications. Ground joint couplings use a tapered mating surface between the stem and nut to create a metal-to-metal seal, making them a reliable choice where threaded or cam-lock fittings are insufficient. This coupling is installed by plumbers, pipefitters, and industrial maintenance technicians working on hose assemblies that handle water, air, steam, or compatible process fluids. At 0.65 pounds, the RGB8 is a compact, single-piece fitting suited for both shop and field use.

Ground joint hose couplings of this type are commonly found in industrial plants, commercial mechanical rooms, construction sites, and agricultural operations. They are used to connect hoses to threaded pipe, manifolds, or other fittings where a positive shutoff or quick disconnect is needed. The RGB8 is sold in single-unit quantities, making it appropriate for spot replacements or small-quantity installations alongside existing ground joint assemblies.

Key Features

• Ground joint design provides a metal-to-metal tapered seal for reliable, leak-resistant connections
• Suitable for use in water, air, steam, and compatible industrial fluid transfer lines
• Single-unit packaging supports replacement and low-quantity procurement
• Compact form factor at 0.65 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or direct addition to ground joint hose coupling assemblies requiring a matching stem, nut, or complete coupling set of the appropriate thread size and configuration.

Installation Notes

Ground joint hose couplings are typically installed by licensed plumbers or pipefitters following applicable IPC and facility-specific piping codes. Shut off and depressurize the line fully before disassembling or replacing any coupling. Inspect the mating tapered surfaces for damage or wear before assembly, as a damaged seating surface will prevent a proper metal-to-metal seal. Do not overtighten; hand-tight plus a controlled turn with a wrench is standard practice for ground joint fittings.